M 4.9 earthquake: North Atlantic Ocean (Portugal) — October 18, 1983

M 4.9 earthquake: North Atlantic Ocean (Portugal) — October 18, 1983. Epicenter 536 km N of Funchal, depth 10 km, 02:48 Local (1983-10-18 03:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Atlantic Ocean (536 km N, Portugal) — 37.465, -16.659

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